Random dweets | Dwitter

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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New_Core

function u(t) {

for(i=209;i--;x.fillRect(-1,30,40,1))x.setTransform(k=20*C(b=i/7+t),l=20*S(b),1,1,i*9,550),x.fillStyle=`hsla(${i*4},99%,50%,.1)`

Mar 23 2018 9:37 PM UTC

}// 128/140

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KilledByAPixel

remix of d/19823 by u/KilledByAPixel

function u(t) {

c.style.filter='invert('
t||x.scale(s=16,-s)
x.fillText(code.split`
`[t*60|0],s,t*1e3-56)

Aug 19 2025 3:22 AM UTC

}// 89/140

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Through a Dweet Darkly ⬛ #quine

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ElisionFR

remix of d/17750 by u/ElisionFR

function u(t) {

if(!t)R=[]
onmousemove=(e,d=t,o=Math.random()*6.28)=>R.push(l=>[e.x+C(o)*(l-d)*9,e.y+S(o)*(l-d)*9])
R.map(v=>x.fillRect(...v(t),1,1))

Feb 26 2020 8:15 AM UTC

}// 133/140

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New particle system (fullscreen only)

u/ElisionFR

#grow
u/13thptr

#growth

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andy

function u(t) {

for(c.width|=i=896;i--;)q=(m=2.4*i)**.5,s=m/70,f=(S((t/64)*i)+1)/16*i,x.beginPath(),x.arc(q*S(m)*s+960,q*C(m)*s+540,f,0,6.24),x.fill();

Mar 29 2019 11:49 AM UTC

}// 136/140

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u/katkip

This is fun to watch
u/DataMeta

Smooth and #hypnotic
u/Xen

love it, had to remix :)
u/magna

#halftone
u/ivylab

This is beautiful

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username

remix of d/6714 by u/Paisley

function u(t) {

with(x)font=`9em'`,globalAlpha=$=t%2,fillStyle=`#fff`,fillRect(0,0,_=2e3,_),fillText($^0?`😄`:`😖`,Math.abs(586*(t*2%6-3)),221+853*($-1)**2)

May 18 2019 9:39 PM UTC

}// 138/140

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ouch :(

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hope4tg

remix of d/4036 by u/hope4tg

function u(t) {

for(i=0;i<180;i++){
x.fillStyle=`hsl(${t/5+t*500},71%,57%)`
x.fillRect(i*25, 480, 35, S((t+i)*(2*S(t)))*300)
}

Dec 27 2017 6:34 PM UTC

}// 110/140

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Trippy strip

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rodrigo.siqueira

remix of d/34626 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert()sepia(`
for(𝕏=X=Y=t,i=3e4;i--;𝕏=X,x.fillRect(Y*2e3+410,X*3e3-910,t<1,.1))X=(X*X-Y*Y*.4)%5+.29,Y=C(2*𝕏*Y+1+i%5/15)+.1

Jan 10 2026 2:05 AM UTC

}// 140/140

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Plant i%5

u/joeytwiddle

#organic

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ciaccodavide

remix of d/20336 by u/ciaccodavide

function u(t) {

இ=10
F=ஔ=>(ஔ%(1+S(t))*10<2)
for(அ=1080/இ;அ--;)
for(ஆ=1920/இ;ஆ--;)
x.fillStyle=F(t*10+ஆ+S(அ+t*100))?"#ed9":"#369",x.fillRect(ஆ*இ,அ*இ,இ,இ)

Oct 21 2020 10:22 AM UTC

}// 136/140

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S̮̣̥ ̡̦̺̯̜͍̠ͧͧ̿̐ͣ̽ͦͅT͔̺͍͙́ͅͅ ̥̙̮̲͎́̋̔́̍̎̔̕A̡͑ ͚͇͙͚̜ͪ̿̎T͆ͬ̎͋͏̹ ̶̻̜̟̣̉̾͌ͣ̊̅̍Ḯ̢͍̲̪̳̟̔̅ ͎̂C̘̳̟̰̞

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KilledByAPixel

remix of d/26352 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󡼽󚍘󛍙󚜽󟬨󨜽󦌥󜜩󚭓󚌨󦍼󟜰󚜪󚬲󧬨󦝼󟜰󚜪󚬳󚜫󤼨󛜭󦌪󚬲󧭙󚬪󜼩󚬨󜜭󨜩󒭦󫽲󚍴󚬽󝬰󛍩󟜲󩜳󞽩󛜭󞽸󛭦󪝬󫍒󩝣󭌨󪜬󭌬󨜯󜬫󛬵󛌱󚜩󒭦󫽲󚍡󟝪󟜹󞼭󛝪󞽡󟝇󚍘󟝩󛼹󞜪󬼫󤼨󨬽󨜪󜼮󜜴󜜶󚜯󬼬󦜽󭌯󞜹󚭳󚽃󚍢󚜯󬼩󚬨󜜭󦜥󜜩󚽙󙜱󚭇󚍘󛍙󚼱󚜩󬼽󜬪󚭪`.replace(/u../g,'')))

Dec 30 2024 3:56 AM UTC

}// 140/140

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Noise Warping 〰️

u/magna

Awesome!
u/UEZ

Nice - I can see faces...

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JustGibas

function u(t) {

for(i=1e4;i--;x.fillStyle=R(l=C(a-t)*3e2/z,l/2,d^i),x.fillRect(960+C(a)*d/z,540+S(a)*d/z,s=40/z,s))z=1.5+S((a=i/99+t)*3)*C((d=i%999)/99)

Oct 14 2026 11:01 AM UTC

}// 136/140

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Attractor #16